Method of foaming perforate sheet material from wire mesh

Details Method of foaming perforate sheet material from wire mesh Method of foaming perforate sheet material from wire mesh

1979-04-16

1980-12-30

Powell, William A.

Adhesive bonding and miscellaneous chemical manufacture

Delaminating processes adapted for specified product

Delaminating in preparation for post processing recycling step

156639, 156644, 156651, 156664, 428613, B44C 122, C03C 1500, C03C 2506, C23F 100

Patent

active

042421764

ABSTRACT:
A method of manufacturing a perforate material from wire mesh for honeycomb noise attenuation and the resulting material therefrom comprising the steps of selecting a sheet of wire mesh, constructed from a material that can be readily diffusion bonded; cleaning the selected wire mesh to remove all grease therefrom, suspending the sheet of selected wire mesh within a furnace, evacuating the oven to about 10..sup.5 torr, elevating and maintaining the furnace temperature to facilitate diffusion bonding of the contacting cross-over areas of the strands of the wire mesh; reducing the furnace temperature, removing the sheet of diffused wire mesh from the oven when its temperature is below its oxidation level. The furnace may additionally be charged with an inert gas to decrease the cooling time. In some instances a heat dispersing member is inserted between the sheet of wire mesh and the source of the elevating temperature. The mesh is selected with hole sizes equal or slightly less in cross-section than the desired diffused size. Where the hole cross-section size is slightly less than ultimately required the hole size is enlarged by conventional chem-milling of the diffused wire mesh.

REFERENCES:
patent: 2047369 (1936-07-01), Hickok
patent: 2925650 (1960-02-01), Pall
patent: 3056432 (1962-10-01), Glaze
patent: 3388448 (1968-06-01), Lovett

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